[webauthn] new commits pushed by WebAuthnBot

The following commits were just pushed by WebAuthnBot to 
https://github.com/w3c/webauthn:

* Built by Travis-CI: 85db884771c13f7c540db3a58b925cfb73695cac Clean 
up attestation, abstract it from UA, fix TPM format, add U2F format 
(#321)
  by Travis-CI
https://github.com/w3c/webauthn/commit/81e586f73716c5900a981026b948339dc1da5e95

Received on Monday, 13 February 2017 23:49:23 UTC